Help me in solving ZERARR problem

help
,
1

My issue

My code

/* package codechef; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */
class Codechef
{
	public static void main (String[] args) throws java.lang.Exception
	{
		// your code goes here
		Scanner sc=new Scanner(System.in);
    	int	t=sc.nextInt();
    	while(t-->0){
    	    int a=sc.nextInt();
    	    int n=sc.nextInt();
            
    	    if(ans>6){
    	        System.out.println("Yes");
    	    }else{
    	         System.out.println("NO");
    	    }
    	}
	}
}

Problem Link: ZERARR Problem - CodeChef